Update NixOS config.

hosts/greynix/configuration.nix

@@ -0,0 +1,53 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+# configuration.nix
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  boot.initrd.luks.devices."luks-880424d4-ac69-44cf-aa3b-99a224128551".device = "/dev/disk/by-uuid/880424d4-ac69-44cf-aa3b-99a224128551";
+  networking.hostName = "greynix"; # Define your hostname.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.xserver.libinput.enable = true;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.elias = {
+    isNormalUser = true;
+    description = "Elias Gasparis";
+    extraGroups = [ "networkmanager" "wheel" "libvirtd" ];
+    packages = with pkgs; [
+    #  thunderbird
+    ];
+  };
+
+  # Services:
+  # =====================================
+
+  # Virtualization for VMs
+  virtualisation.libvirtd.enable = true;
+  programs.virt-manager.enable = true;
+
+  # Open ports in the firewall.
+  networking.firewall.allowedTCPPorts = [ 22 ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "24.05"; # Did you read the comment?
+
+}

hosts/greynix/hardware-configuration.nix

@@ -0,0 +1,47 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "vmd" "xhci_pci" "ahci" "nvme" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/7f9595fb-2076-4f33-8834-ce8485bfc56f";
+      fsType = "ext4";
+    };
+
+  boot.initrd.luks.devices."luks-1ead6344-6826-436d-9ff8-daa75571966a".device = "/dev/disk/by-uuid/1ead6344-6826-436d-9ff8-daa75571966a";
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/7361-5788";
+      fsType = "vfat";
+      options = [ "fmask=0077" "dmask=0077" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/f529a3f7-ceb2-453c-99b3-583e84cf4172"; }
+    ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlo1.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+
+  # bluetooth
+  hardware.bluetooth.enable = true; # enables support for Bluetooth
+  hardware.bluetooth.powerOnBoot = true; # powers up the default Bluetooth controller on boot
+
+}